Stop-cock or analogous valve



(No Model.)

P. ZIMMERMANN, Jr. STOP 000K AND ANALOGO-US VALVES.

No. 475,530. Patented May 24, 1892;

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PETER ZIMMERMANN, JR, on NEW YORK, N. Y., ASSIGNoR, BY DIREoT AND MESNE ASSIGNMENTS, TO HIMSELF, AUGUSTUS M. MILLER, AN-D WILLIAM B. MILLER, OF SAME PLAGE, AND ROBERT II. CUNNINGHAM, or 'PATER- soN, NEW JERSEY.

STOP-COCK OR ANALOGOUS VALVE.

SPECIFICATION forming part of Letters Patent No. 475,530, dated May 24, 1892.

Application filed January 4:, 1892. Serial No. 416,931. (No model.)

To all whom it may concern: sider the best means of carrying out the in- Be it known that I, PETER ZIMMERMANN, J r., vention. o a citizen of the United States, residing in the Figure 1 is a view on a scale showing the city and county of New York, in the State of invention applied to a cock adjacent to a gas- New York, have invented a certain new and meter. Fig. 2 is a corresponding 'front view useful Improvement relating to Stop-Cocks, of the cock and its securing means on alarger of which the following is a specification. scale. Fig. 3 represents the front plate of the The invention will apply to any form of lock detached, and Fig. 4 is avertical section stop-cock or valve which opens and closes by on the line 44 in Fig. 2. It shows the key in [0 being revolved or partiallyrevolved on its axis. the act of lifting the tumbler preparatory to I will describe it as applied to an ordinary throwing the locking bolt. stop-cock for controlling by the proper agents Similar letters of reference indicate come of a gas companythe supply of gas to a house sponding parts in all the figures where they or manufactory. appear.

15 It haslong been practiced to apply locks in A is the body of the cock, certain portions the form of a detachable l0ck padlock. Such being designated when necessary by superrequire fittings, flanges, arms, or other special numerals, as A A &c. The nozzle A conequipments to allow their application, and nects with a pipe leading to the street-main. withal are liable to misplacements and loss. The nozzle A connects with the gas-meter.

20 There have been plans for inclosing a lock A compact casing A is cast in one with the within the plug; but such require a large parts A and A and constitutes the main plug. There have been efforts to constructa body of the lock-casing. The separatelylocking means as a part of the cock, having a formed plate A is strongly riveted to serve bolt engaging in a recess in the plug of the as a cover.

2 5 cock; but, as heretofore made, such have been 13 is the plug of the cock, in all respects like insufficient. I have discovered a compact an ordinary plug, except that it is bored raform of lock mechanism with a large stout dially to a sufficient depth at the point I), tumbler carrying a dog and, with an efficient adapting it to receive the bolt. By making operating-spring, may be inclosed in a casing the key-hole V-shaped the key does not re- 30 of proper form and limited size made integral quire to be fully revolved,but only to be par- With the body of the cock, with one side formed tially revolved, before it can be withdrawn. separately and permanently attached after D is the bolt of the lock, guided at each end the work is putin. I have made such alock. in a hole bored in the casing A and having The bolt is cylindrical with a notch on one its rear end split by a saw-key, as indicated 3 5 side to receive the key and two notches on by d, and receiving the transverse pin or wire the opposite side to alternately receive the O, which is inserted in the casing and predog. Efficient guides for the bolt are provents the bolt from turning on its axis. A duced by simply drilling a cylindrical hole. notch 01' on the under side of the bolt allows The bolt is prevented from turning by splitthe wing of the key to engage and the bolt to 40 ting the end by sawing or otherwise and inbe thrown by partially turning the key. Two troducing a wire transversely, which shall be notches d and d are formed in the upper sid received in such split. of the bolt D, as shown. E is a tumbler raised My invention provides effective and duraand lowered by the key and turning on a pin ble means for securing and moving the bolt, or stud A It is pressed downward by the 45 and consequently holding and releasing the spring G, set in the post A ,and provided with plug of the cook. a dog E, adapted to engage in either of the The accompanying drawings forin apart of notches d or (1 as they shall be presented to this specification and represent what I 0011- it. A is a key-post firmly set in the casing and engaging in the ordinary axial hole in the end of the key. The wing of the key is so formed and proportioned that when its outer edge engages in the notch d to throw the bolt endwise a shoulder on the key also engages under the properly-formed lower edge of the tumbler E and lifts it against the force; of'the spring G, and thus lifts the dog E out; of engagement with thebolt. When the .bolt' is fully thrown, the tumbler E is allowed to sink again and the dog E engages in the notch d and holds it; allowing the key to be withdrawn. The gnidesfor ,thebolt are produced. by simply drilling. The lock-casing A, be-" ing extended a little above the cock proper, allows this simple mode of construction. The transverse pin or wire 0 is set in a smaller hole drilled at right angles thereto. Modifications maybe made by any good we chanic without departing-from the principle or sacrificing the advantages of the inven tion. The forms andproportions of the parts a may be changed within wide limits. I can nsetwo or more tumblers; but I esteem such complication to'be generally inexpedient.

I claim as my invention- In a cock for gas or other fluids, the bolt D, provided with a split d and notches d (1 d in combination with thetumbler E,'carrying thedog-Et and the spring Gland permanently closed in thelock-case A, made integral with PETER Z'IMMERMANN, JR.

Witnesses:

GEO. J. F. KEMBLE, LoUIs J. ZIMMERMA'NN.

the-body of the'cock and having the perma- 

